System for preventing effluent emissions from coke ovens

ABSTRACT

A system for preventing effluents from being emitted through the ports in a coke oven upon charging the coke oven with coal including charging apparatus mounted on a larry car, which apparatus extends into the ports of the coke oven and seals the same during the charging of the coke oven with the coal to prevent the coal from extending into the ports of the coke oven and to preserve a gas flow path to the off-gas collectors.

United States Patent Armour et a1.

1 1 Jan. 28, 1975 SYSTEM FOR PREVENTING EFFLUENT EMlSSlONS FROM COKE OVENS Frank K. Armour, Flossmoor; Peter Prince, Alsip, both of 111.

Assignee: lnterlake, Inc., Chicago, 111.

Filed: July 24, 1972 Appl. No.: 274,326

inventors:

U.S. C1. 202/263, 202/262 Int. Cl C10b 27/04 Field of Search 202/263, 262; 141/258,

References Cited UNITED STATES PATENTS 12/1930 VanAckeren i. 202/263 2/1932 VanAekeren 11/1932 Folsom 202/263 11/1971 Knappstein 202/263 FORElGN PATENTS OR APPLlCATlONS 569,613 g/ 1933 Germany .,202/263,

lrimary Examiner-A. Louis Monacell Assistant Examinen-D. Sanders Attorney, Agent, or FirmPrangley, Dithmar, Vogel, Sandler & Stotland 23 Claims, 15 Drawing Figures PATENIED JAN28I975 sum 1 or 5 FIG./

PATENIEB JANZ 81975 SHEET 2 [IF 5 SYSTEM FOR PREVENTING EFFLUENT EMISSIONS FROM COKE OVENS This invention relates to a system for preventing effluents from being emitted from a coke oven upon charging the coke oven with coal, and more particularly, this invention pertains to a system wherein a charging apparatus extends into the ports of the coke oven during the charging of coal thereinto thereby to prevent the coal in the coke oven from extending into the ports thereof and to preserve a gas flow path.

An important object of the present invention is to provide a system for preventing effluents from being emitted through a port in a coke over upon charging the coke oven with coal, comprising a larry car for transferring coal from a source thereof to the coke oven, a coal hopper mounted on the larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus in communication with the coal hopper exit for transferring coal to the coke oven from the coal hopper through the exit therein, the charging apparatus being movable between a first position wherein the charging apparatus is spaced from the top of the coke oven to facilitate movement of the larry car and a second position wherein one end of the charging apparatus extends into the port, means for transferring coal from the hopper through the charging apparatus to the coke oven when the charging apparatus is in the second position thereof, and an effluent collector in communication with the coke oven for collecting effluents produced during the charging of coal into the coke oven and prevent from escaping therefrom into the atmosphere, whereby coal transferred into the coke oven is prevented from clogging the ports by the end of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from the coal hopper to the coke oven are prevented from being vented to the atmosphere and are collected by the effluent collector.

Another object of the present invention is to provide a system of the type set forth wherein the charging apparatus includes a sleeve in communication with the coal hopper and movable with respect thereto between a first position wherein the sleeve is spaced from the port to facilitate the movement of the larry car and a second position wherein the sleeve is in engagement with the port thereby to align the charging apparatus therewith, and a conduit mounted within the sleeve and movable between a first position wherein the conduit is spaced from the sealing end of the sleeve to facilitate movement of the larry car and a second position wherein the conduit extends into the enlarged portion of the port for charging coal to the coke oven to permit effluents to flow through the enlarged portion of the port and past the conduit.

Still another object of the present invention is to provide a system of the type set forth wherein alevelling bar is associated with the coke oven for entry thereinto a level mounds of coal present in the coke oven and formed therein during the transfer of coal from the coal hopper to the coke oven.

Still another object of the present invention is to provide a system of the type set forth wherein a plurality of aligned coke ovens each have a plurality of ports therein and the number of coal hoppers on the larry car corresponds in number to the number of ports in each coke oven.

A further object of the present invention is to provide a larry car for transferring coal from a source thereof to a coke oven through a port therein, the larry car comprising a platform mounted on wheels and adapted to ride above the top of the coke oven, a coal hopper mounted on the platform and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus in communication with the coal hopper exit for transferring coal to the coke oven from the coal hopper through the exit therein, the charging apparatus being movable between a first position wherein the charging apparatus is spaced from the top of the coke oven to facilitate movement of the larry car and a second position wherein one end of the charging apparatus extends into the port, and means for transferring coal from the hopper through the charging apparatus to the coke oven when the charging apparatus is in the second position thereof, whereby coal transferred into the coke oven is prevented from clogging the port by the end of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from the coal hopper to the coke oven are prevented from being vented to the atmosphere.

A still further object of the present invention is to provide apparatus includes a sleeve movable between a first position wherein said sleeve is spaced from the port and a second position wherein the sleeve is in engagement with the port and a conduit mounted within the sleeve and movable between a first position wherein the conduit is spaced from the sealing end of the sleeve and a second position wherein the conduit extends into the enlarged portion of the port to provide an effluent flow path.

The invention, both as to its organization and method of operation, together with further objects and advantages thereof, will best be understood by reference to the following specification taken in connection'with the accompanying drawings in which:

FIG. I is a perspective view of a bank of coke ovens and a laarry car in position thereon;

FIG. 2 is an end view of the bank of coke ovens showing the coke ovens in section and the larry car in elevatron;

FIG. 3 is an enlarged elevational view of a coal hopper and charging apparatus therefor, wherein the charging apparatus is in position to transfer coal to the coke oven;

FIG. 4 is an enlarged elevational view of a coal hopper and charging apparatus wherein the charging apparatus is spaced from the coke oven to facilitate movement of the larry car;

FIG. 5 is a sectional view of the charging apparatus shown in FIG. 3 partly in section and partly in elevation;

FIG. 6 is a sectional view of the charging apparatus shown in FIG. 5 taken along lines 66 thereof;

FIG. 7 is an enlarged side elevational view of the charging apparatus shown in FIG. 5 taken along lines 7-7 thereof;

FIG. 8 is a view in section of a port to a coke oven;

FIG. 9 is a view in section of a port in a coke oven and showing the charging apparatus in registry therewith;

FIG. is a view in section of a port of a coke oven wherein the charging apparatus is in sealing relation therewith;

FIG. 11 is a view in section of a port of a coke oven wherein the charging apparatus is in sealing relationship with the coke oven and extends into the port;

FIG. 12 is a view in section of a port in a coke oven showing the charging apparatus in sealing relationship with the coke oven and extending into the port and particularly showing the leveling bar in operation;

FIG. 13 is a view in section of a port in a coke oven that has been charged with coal and leveled to permit gases to escape more quickly from the coke oven to a recovery system therefor;

FIG. 14 is a perspective view of a bank of coke ovens and particularly showing alternative embodiment ofthe invention shown in FIG. 1; and

FIG. 15 is an end view of the bank of coke ovens shown in FIG. 14 particularly showing the double offgas recovery system.

Referring now to the drawings and particularly to FIGS. 1 and 2 thereof, there is disclosed a system for collecting effluents from a coke oven. More particularly, there is shown a bank of coke ovens 101 having a common top wall 102 and opposed and parallel side walls 103, the side walls 103 being provided with a plurality of spaced-apart supports 104.

As seen in the drawings, a single coke oven of the bank of coke ovens 101 is provided with three ports 111 providing communication between the coke oven 110 and the atmosphere. Each of the ports 111 has a tubular opening 112 (as seen in FIGS. 3-5), which is in communication with the top wall 102 of the bank 101 of coke ovens and a reinforcement plate 114 at the top thereof, the reinforcement plate having a chamfered opening defining an abutment surface 113. Each ofthe ports 111 further incudes an enlarged opening 115 extending downwardly from the bottom of the tubular opening 112 and leading to the main coking chamber of the coke oven 110. The enlarged opening 115 serves to provide an effluent flow path 118, as will be explained. A cover is adapted to fit within the reinforcement plate 114 of each of the ports 111 and more particularly to form a sealing engagement with the abutment surface 113 of the reinforcement plate.

The bank of coke ovens 101 is provided with a ledge 126 which extends horizontally the length of the bank of coke ovens 101, the ledge 126 being supported by the supports 104. An off-gas collector 130 rests on the ledge 126 and incudes an elongated manifold 132 which is provided with a plurality of legs 133. Each of the coke ovens 110 is provided with an exhaust port 135 at the end thereof adjacent the off-gas collector 130, which exhhaust port 135 is in communication with the off-gas collector by means of a pipe 136 extending through a collar 137 and entering the manifold 132, thereby to provide communication between the coke oven 110 and the off-gas collector 130.

There is also provided a larry car 140 which includes a platform 141 having a pair of bumpers 142 extending from one end thereof. The larry car 140 is also provided with a plurality of wheels 144 journaled for rotation in support structure 145 and adapted to ride upon a pair of spaced-apaart railway rails 146. The railway rails 146 rest on the top surface 102 ofthe bank of coke ovens. The larry car 140 is further pirovided with an operators cabin 148 and an electrical controls cab 149, all as is well known in the art.

The larry car 140 is further provided with a plurality of coal hoppers 155, the number of coal hoppers corresponding in number to the number of ports 11 in each of the coke ovens 110. Each of the coal hoppers includes an elongated cylindrical wall 156 resting at one end thereof on the platform 141 and being connected at the other end thereof to a frustoconical section 157 which leads to a neck section 158 and thereafter to a funnel 159 forming an entrance to the coal hopper 155 for the introduction of coal thereinto.

Each of the coal hoppers 155 is provided with a charging mechanism 170, the charging mechanism having a sleeve in the form of an elongated tube 176. A flange 177 is positioned at one end of the tube 176, the flange 177 being fixedly secured to the tube 176 by welds 178. At the other end of the tube 176 is a bottom plate 180 having a beveled surface 181, the bottom plate 180 being fixedly secured to the tube 176 by welds 182. The bottom plate 180 is shaped to provide an aperture 183 in the center thereof, the aperture 183 being of substantial diameter to permit the passage of coal therethrough. Additionally, an aperture 185 is in the side of the tube 176 positioned about midway be tween the flange 177 at the top thereof and the bottom plate 180. I

A connecting tube is welded at one end thereof to the sleeve 175 as at 191 and is mounted at the other end 194 thereof to the hopper 155 and pivots about a pin 193. The connecting tube 190 serves to provide communication between the inside of the coal hopper 155 and the inside of the sleeve 175.

A mounting plate 200 is welded to the sleeve 175 and the connecting tube 190 by means of welds 201 (see FIG. 6). Another mounting plate 203 is fixedly secured to each of the coal hoppers 155 and each is provided with a pivot pin 204 which pivotally secures a motor mechanism 205 in the form ofa pneumatic cylinder to the mounting plate 203. The motor mechanism 205 has a mounting tab 206 which is secured to the mounting plate 203 by means ofa pin 204. The motor mechanism 205 also has piston 207 extending from one end thereof, which piston 207 is connected to a U-shaped connector 208 that is pivotally mounted to the mounting plate 200 by means of a pin 209.

Each of the charging mechanism 170 for the coal hoppers 155 includes a charging conduit 220 slidably positioned within the respective sleeve 175. Each of the charging conduits 220 is provided with an end plate 221 at the top thereof, which end plate 211 has a beveled surface 222 defining an opening therein. The charging conduits 220 each have at the other end 223 thereof an opening thereby to provide a channel through which coal may flow. The conduit 220 is beveled as at 224 near the end 223 thereof thereby to reduce the outside diameter of the conduit 220 near the discharging end thereof. Bearings 225 are positioned within the tube 176 so as to permit sliding of the charging conduit 220 with respect thereto between the positions shown in FIGS. 3 and 4.

Each of the charging conduits 220 is provided with a motor mechanism 230, each of the motor mechanisms including housing 231, a seal plate 232 and a motor mounting plate 233. The motor mounting plate 233 is mounted to the respective flange 177 thereby fixedly to position the motor 230 with respect to the sleeve 175. The motor 230 is provided with a piston 235 which extends from the motor 230 through a piston housing 236. The piston 235 is connected at the distal end thereof to a connector 238 in the form of three prongs each having an end 239 fixedly connected to .the end plate 221 of the charging conduit 230, thereby functionally to connect the motor 230 to the charging conduit 220. The motor 230 is operational to move the charging conduit 220 between the full line position and the phantom line in position in FIG. 5.

Each of the connecting tubes 190 houses an auger mechanism 245 which assists in transferring coal from the respective coal hopper 155 to the charging mechanism 170 and more particularly into the sleeve 175 and the charging conduit 220. There is also provided a leveling bar 250 having a camming surface 251 at the bottom thereof, as seen in FIGS. 2 and 12, the leveling bar 250 being introduced into the coke oven 110 through a door 252 provided in the side wall 103 of the coke oven. It is understood that leveling bar 250 has a width which is substantially one half of the width of the coke oven 110, for a purpose hereinafter explained.

The larry car 140and the effluent collection system 100 operates as follows: the larry car 140 is transported along the rails.l46 by means ofa drive mechanism (not shown) to a source of coal. At the coal source, the hoppers 155 are loaded with coal by a mechanism that is standard in the art. In order for the larry car 140 to move freely along the rails 146, the charging mechanism 170 must be in the position shown in FIG. 4, that is a position wherein the sleeve 175 and the conduit 220 are spaced away from the stop 102 of the bank of the coke ovens 101. With the charging mechanism 170 in the position shown in FIG. 4, the larry car 140 is free to move along the rails 146 between the source of coal (not shown) and the individual coke oven 110 to be charged with coal.

When the coke hasbeen pushed from aparticular coke oven, the coke oven is ready to be charged again with coal. The larry car 140 having filled coal hoppers 155 thereon is transported along the rails 146, it being remembered that the charging mechanism 170 must be in position shown in FIG. 4, for the larry car to move freely along the rails.

Referring now to FIG. 8, there is disclosed a port 111 for a coke oven 110 to be charged with coal. The port 111 is provided with the reinforcement plate 114 and a cover 220 therefor sealingly mounted in the reinforcement plate 114 and abutting the surfaces 113. Prior to the time that the larry car 140 arrives in position, wherein the charging mechanisms 170 are in registry with the aligned ports 111 of the coke oven 110, as seen in FIG. 4, the covers 120 for the ports 111 are each removed.

Referring to FIG. 9, it is seen that for a particular port 111 the cover 120 has been removed therefrom and the charging mechanism 170 is in registry therewith. More particularly, the sleeve 175 is in perpendicular relationship with the port 111 so as to position the bottom plate 180 and particularly the beveled surface 181 thereof over the port 11 and more specifically the reinforcement plate 114 and the abutment surface 113 thereof.

Referring to FIG. of the drawings, it is seen that the sleeve 175 is now in sealing engagement with the port 111 and more particularly the beveled surface 181 of the end plate is in sealing engagement with the abutment surface 113 of the reinforcement plate 114. Movement of the charging mechanism 170 and more particularly the sleeve 175 from the position shown in FIG. 9 to the position shown in FIG. 10 is effected by actuation of the pneumatic cylinder 205. As seen in FIG. 4, thecharging mechanism 170 is in a position which generally corresponds to the position thereof in FIG. 9 and the pneumatic cylinder 205 is in a position wherein the piston 207 thereof is withdrawn into the cylinder. Actuation of the pneumatic cylinder 205 results in the extension of the piston 207 from the 'position shown in FIG. 4 to the position shown in FIG. 3 thereby to effect movement of the charging mechanism 170 from the position shown inFIG. 9 to the position shown in FIG. 10.

During the time that the charging mechanism 170 is in the position shown in FIG. 4 wherein the charging mechanism is spaced away from the top 102 of the bank of coke ovens 101, coal present in the coal hoppers is maintained therein by closing an exit therefrom (not shown). Even after the charging mechanism have moved from the position shown in FIG-4 to the position shown in FIG. 3, coal present in the coal hoppers 155 will not flowinto the charging mechanisms until the exits of the coal hoppers are opened. Upon opening the exits thereby to provide communication between the coal hoppers 155 and the connecting tubes 190 and the charging mechanisms 170, coal is free to move from the coal hoppers 155 through the connecting tubes 190 and into the charging mechanisms 170. Movement of the coal. along the path just described is assisted by the presence of augers 245 present in each of the connecting tubes 190. Coal will not be permitted to move through the connectingtubes 190 until the charging conduit 220 is in position. The augers 245 in each of the connecting tubes 190 may be operated simultaneously or sequentially for a purpose to be explained.

- Movement of each of the charging conduits 220 from the position shown in FIG. 10 to the position shown in FIG. '11 is effected by operation of motor mechanism 230. When the charging mechanism 170 is in the position shown in FIG. 4, the charging conduit 220 is in the position shown in phantom therein, whereby the charging conduit is spaced from the top 102 of the bank of coke ovens 101 to permit movement of the larry car 140 along the rails 146. Actuation of the motor mechanism 230 results in extension of the piston 235 to the position shown in FIG. 3 wherein the charging conduit 220 extends into the port 111 and more particularly into the enlarged portion 115 thereof. Movement of the charging conduit 220 within the sleeve is aided, as hereinbefore explained, by the bearings 225 in the sleeve l75,it being understood that more than one such bearing 225 maybe present. When the charging conduit 220 has reached the position shown in FIG. 11, it corresponds to the full-line position shown in FIG. 5. In that position, the opening'defined by the beveled surface 222 of the charging conduit 220 is positioned below the juncture of the connecting tube and the sleeve 175, thereby to provide a gravity flow path between the connecting tube 190 and the charging conduit 220. The end plate 221 rests upon the bearings 225 thereby fixedly to position the charging conduit 220 within the sleeve 175. The charging conduit 220 ex tends downwardly into the port 111 and more particularly, the beveled surfaces 224 of the charging conduit extend into the enlarged portion 115 of the port, thereby to provide for the flow path 118.

Once the charging conduit 220 and the sleeve 175 are in position as shown in FIG. 11, the coal hopper exit (not shown) is opened so as to provide communication between inside of the coal hopper 155 and the connecting tube 190 and the charging mechanism 170. Thereafter, the auger 245 is operated to assist in transferring coal from the coal hopper 155 into the coke oven 110.

As coal 260 is transferred from the coal hopper 155 into the coke oven 110, mounds 265, see FIGS. 2, and 11, are produced. Heretofore, charging of coal into a coke oven 110 has resulted in the bridging of the gas flow path between portions of the coke oven 110 and the off-gas collector 130 by the mounds 265 of coal resulting in the discharge'of noxious gases, coal dust and the like into the atmosphere through the ports 111. In the present invention,'it is seen that each of the charging conduits 220 extends downwardly into the enlarged portion 115 of the port 111, whereby a gas flow path 118 is established and is always present to permit gas to flow from allportions of the coke oven 110 to the off-gas collector 130. More particularly, the highest level that the mounds 265 can obtain is to the bottom end 233 of the charging conduit 220. It is seen that the bottom end 223 of the charging conduit 220 extends into the coke oven a distance sufficient to prevent blockage of the gas flow path 118 by the coal mounds 265. With the mechanism of the present invention, it is impossible for the coal 260 introduced into the coke oven 110 to create mounds 265 thereof which will block the gas flow path 118 causing effluents to be emitted from the ports 111. Additionally, the sleeves 175 are in sealing relationship with the ports 111 when coal 260 is being introduced into the coke oven 110 thereby to provide additional insurance against emission of effluents from the coke oven.

Referring now to FIG. 12, it is seen that the mounds 265 of coal 260 may be leveled by operation of the leveling bar 250 which is introduced into the coke oven 110 through the door 252 in the side 103 of the oven. The leveling bar 250 has a camming surface 251 which contacts the mounds 265 of coal 260 thereby leveling the same to provide an even level of coal 266, which camming surface prevents the leveling bar from digging into the mounds of coal in the coke oven. The leveling bar 250 travels in a direction indicated by the arrow 265, that is, in a direction along the longitudinal extent of the coke oven 110. Separate mechanism, not shown, is provided to move the leveling bar 250 along the bank 101 of coke ovens, as is well known in the art.

Once the leveling bar 250 has produced a leveled body 266 of coal 260, additional coal 260 may be introduced into the coke oven 110 until a sufficient charge ofcoal 260 is in the oven. As seen in FIG. 13, a gas flow path 118 is always provided with the present invention so as to permit flow of noxious gases, coal dust and the like into the off-gas collector 130. Once the coke oven 110 has been charged, there is no obstruction to the gas flow path and the gas moves in the direction shown by the arrows 270. Once the covers 120 have been reintroduced into place to seal all of the ports 111, the coke having the coal 260 therein is ready for the subsequent coking operation. 4

Referring now to FIGS. 14 and 15, there is disclosed a second embodiment of the present invention wherein a system 300 for preventing effluents from escaping from a coke oven 310 is provided. More particularly, there is shown a bank of coke ovens 301 having a common top wall 302 and opposed and parallel side walls 303, the side walls 303 being provided with a plurality of spaced-apart supports 304.

As seen, a single coke oven 310 of the bank of coke ovens 301 is provided with three ports 311, providing communication between the coke oven 310 and the atmosphere.v Each of the ports 311 is provided with a tubular opening 312 in communication with the top'wall 302 of the bank 301 of coke ovens. Each of the ports 311 is provided with a reinforcement plate 314 similar in construction to that hereinbefore described with respect to the first embodiment herein. Furthermore, each of the ports 311 is shaped to provide a tubular opening 312 and an enlarged opening 315, the enlarged opening 315 providing an effluent flow path 318, all as hereinbefore explained.

The bank of coke ovens is provided with a ledge 326, as seen on the left-hand portion of FIG. 15, which-extends horizontally the length ofthe bank of coke ovens 301, the ledge 326 being supported by the supports 304. An off-gas collector 330 is supported by the ledge 326 and includes an elongated manifold 332 which is provided with a plurality of legs 333 resting on the ledge 326. Each of the coke ovens 310 is provided with a first exhaust port 335 at the left-hand end, as seen in FIG. 15, in communication with the off-gas collector 330 through a pipe 336 extending through a collar 337 and entering the manifold 332.

At the right-hand end of the coke oven 310 there is provided a second off-gas collector 330a, which off-gas collector is identical in construction to the off-gas collector 330 and is also in communication with the coke oven 310.

There is also provided a larry car 340 which includes a platform 341 having a pair of bumpers 342 extending from one end thereof. The larry car 340 is also provided with a plurality of wheels 344 journalled for rotation in support structure 345 and adapted to ride upon a pair of spaced-apart railway rails 346. The larry car 340 is further provided with an operators cabin 348 and an electrical controls cab 349.

The larry car 340 is also provided with a plurality of coal hoppers 355, the number of coal hoppers corresponding in number to the number of ports 311 in each of the coke ovens 310. Each of the coal hoppers 355 includes an elongated cylindrical wall 356 resting at one end thereof on a platform 341 and being connected at the other end thereof to a frustoconical section 357 which leads to a neck section 358 and thereafter to a funnel 359 forming an entrance to coal hopper 355 for the introduction of coal thereinto.

Each of the coal hoppers 355 is provided with a charging mechanism 370 of the same construction and operation as the charging mechanisms 170. Each of the coal hoppers 355 is connected to the respective one of the charging mechanisms 370 by a connecting tube 390, which connecting tube is of the same construction and operation as the connecting tubes 190.

The operation of the system 300 is the same as the operation of the system hereinbefore set forth, the principal difference being the provision of two off-gas collectors 330 and 330a. The advantage of providing two off-gas collectors 330 and 330a is that, since the collectors operate under reduced pressure, more of the effluents produced upon charging the coke oven 310 with coal 460 will be drawn into the off-gas collectors 330 and 330a, thereby decreasing the possibility of effluents being emitted to the atmosphere. As hereinbefore stated, the coal transmitted from the coal hoppers 355 to the coke oven 310 may be transmitted simultaneously from all three coal hoppers or may be transmitted sequentially, wherein, for instance, the right-hand hopper is emptied into the coke oven prior to the time that the center coal hopper is discharged. An advantage in sequentially dispensing coal from the coal hoppers 355 into the coke oven 310 is that the effluents produced during the discharge of one coal hopper can flow along the gas flow path 318 and be conducted to at least one of the off-gas collectors 330 or 330a before the second load of coal 460 is introduced into the coke oven 310, thereby preventing the effluents from being emitted through the ports 311.

While there has been illustrated a system wherein coal is transported to the individual coke ovens by a larry car, the invention contemplates a system wherein coal is transferred from a source thereof to the individual coke ovens by means of a permanently installed conveyor system.

It is seen therefore, that there has been providedan improved apparatus for preventing effluents from being vented to the atmosphere during the charging of coal to coke ovens. While there has been described herein what is considered to be the preferred embodiment of the present invention, it will be understood that various modifications may be made without departing from the spirit and scope of the present invention.

What is claimed is:

1. A system for preventing effluents from being emitted through a port in a coke oven upon charging the coke'oven with coal wherein the port has an upper portion and an enlarged lower portion, comprising a larry car for transferring coal from a source thereof to the coke oven, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke oven from said coal hopper through said exit therein, said charging apparatus including a sleeve in communication with said coal hopper and pivotally movable with respect thereto between a first position wherein said sleeve is spaced from the port to facilitate the movement of said larry car and a second position wherein said sleeve is in engagement with the port thereby to align said charging apparatus therewith, a conduit mounted within said sleeve and having transverse dimensions less than the upper portion of said port to fit therein and movable between a first position wherein said conduit is spaced from the engaging end of said sleeve to facilitate movement of said larry car and a second position wherein one end of said conduit extends through the upper portion of said port and into the enlarged portion of the port for charging coal to the coke oven to prevent coal from clogging the ports, the discharge end of said conduit in the second position thereof being spaced from the walls of said enlarged portion of the port to permit effluents to flow through the space between said conduit and the walls of the enlarged portion of the port, means for moving said conduit to the second position thereof when said sleeve is in the second position thereof and for moving said sleeve to the first position thereof'when said conduit is in the first position thereof, means for transferring coal from said hopper through said charging apparatus to the coke oven when said sleeve and said conduit are in the second positions thereof, and an effluent collector in communication with the coke oven for collecting effluents produced during the charging of coal into the coke oven and prevented from escaping therefrom into the atmosphere, whereby effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke oven are prevented from being vented to the atmosphere and are collected by said effluent collector.

2. The system set forth in claim 1, wherein said means for transferring coal from said hopper includes an auger in communication with said hopper and with said charging conduit.

3. The system set forth in claim 1, wherein said sleeve is perpendicular to the top of the coke oven when said sleeve is in the second position thereof.

4. The system set forth in claim 1, wherein said sleeve is pivotable between the first position thereof and the second position thereof.

5. The system set forth in claim 1, wherein said conduit is slidable with respect to said sleeve.

6. The system set forth in claim 1, wherein the end of said conduit extending into the port is of reduced outside diameter.

7. The system set forth in claim 1, wherein said means for moving said conduit is a hydraulic cylinder having a piston connected to said conduit.

8. A system for preventing effluents from being emitted through a port in coke oven on charging the coke oven with coal, comprising a larry car for transferring coal from a source thereof to the coke oven, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke oven from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the coke oven to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the port, means for transferring coal from said hopper through said charging apparatus to the coke oven when said charging apparatus is in the second position thereof, an effluent collector in communication with the coke oven for collecting effluents produced during the charging of coal into the coke oven and prevented from escaping therefrom into the atmosphere, and a leveling bar associated with the coke oven for entry thereinto to level mounds of coal present in the coke oven and formed therein during the transfer of coal from said coal hopper to the coke oven, whereby coal transferred into the coke oven is prevented from clogging the port by the end of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke oven are prevented from being vented to the atmosphere and are collected by said effluent collector.

9. The system set forth in claim 8i, wherein said levelling bar is about one-half the width of the coke oven.

10. The system set forth in claim 8, wherein said levelling bar is provided with a camming surface at the bottom thereof to prevent said levelling bar from digging into the coal.

11. A system for preventing effluents from being emitted through the ports in a plurality of aligned coke ovens upon charging the coke ovens with coal, comprising a larry car for transferring coal from a source thereof to the coke ovens, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the ports in the coke ovens, a charging apparatus mounted externally of said coal hopper in a continual communication therewith for transferring coal to the coke ovens from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the ports, means for transferring coal from said hopper through said charging apparatus to the coke ovens when said charging apparatus is in the second position thereof, and an effluent collector in communication with the coke ovens for collecting effluents produced during the charging of coal into the coke ovens and prevented from escaping therefrom into the atmosphere, coal transferred into the coke oven is prevented from clogging the ports by the end of said charging apparatus and whereby effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke ovens are prevented from being vented to the atmosphere and are collected by said effluent collector.

12. The system set forth in claim 11, wherein each of the coke ovens has a plurality of ports therein.

13. The system set forth in claim 11, wherein each of the coke ovens has three ports therein.

14. A system for preventing effluents from being emitted through the ports in a plurality of aligned coke ovens upon charging the coke ovens with coal, comprising a larry car for transferring coal from a source thereof to the coke oven, a plurality of coal hoppers mounted on said larry car and corresponding in number to the number of ports in each of the plurality of coke ovens, each of said plurality of coal hoppers having an entrance thereto for receiving coal from the source thereof and an exit therefrom for dispensing coal into a respective one of the ports in the coke ovens, a plurality of charging apparatus corresponding in number to said plurality of coal hoppers and each of said plurality of charging apparatus being mounted externally of said coal hopper in continual communication with a respective one of said plurality of coal hopper exits for transferring coal to the coke ovens from said plurality of coal hoppers through the respective exits therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus are spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of each of said charging apparatus extends into the ports, means for transferring coal from said coal hoppers through said charging apparatus to the coke ovens when said charging apparatus are in the second position thereof, an effluent collector in communication with the coke ovens for collecting effluents produced during the charging of coal into the coke ovens and prevented from escaping therefrom into the atmosphere, whereby coal transferred into the coke oven is prevented from clogging the ports by the ends of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hoppers to the coke ovens are prevented from being vented to the atmosphere and are collected by said effluent collector.

15. The system set forth in claim 14, wherein three coal hoppers are mounted on said larry car.

16. A system for preventing effluents from being emitted through a port in an elongated coke oven upon charging the elongated coke oven with coal, comprising a larry car for transferring coal from a source thereof to the elongated coke oven, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the elongated coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the elongated coke oven from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the elongated coke oven to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the port, means for transferring coal from said hopper through said charging apparatus to the elongated coke oven when said charging apparatus is in the second position thereof, and a first effluent collector in communication with one end of the elongated coke oven and a second effluent collector in communication with the other end of the elongated coke oven, said first effluent collector and said second effluent collector serving to collect effluents produced during the charging of coal into the elongated coke oven and prevented from escaping therefrom into the atmosphere, whereby coal transferred into the coke oven is prevented from clogging the port by the end of the charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the elongated coke oven are prevented from being vented to the atmosphere and are collected by said first and said seccond effluent collectors.

17. A larry car for transferring coal from a source thereof to a coke oven through a port therein having an enlarged portion, said larry car comprising a platform mounted on wheels and adapted to ride above the top of the coke oven, a coal hopper mounted on said platform and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke oven from said coal hopper through said exit therein, said charging apparatus including a sleeve in communication with said coal hopper and being pivotally movable with respect thereto between a first position wherein said sleeve is spaced from the port to facilitate the movement of said larry car and a second position wherein said sleeve is in engagement with the port thereby to align said charging apparatus therewith, a conduit mounted within said sleeve and movable between a first position wherein said conduit is spaced from the engaging end of said sleeve to facilitate movement of said larry car and a second position wherein said conduit extends into the enlarged portion of the port for charging coal to the coke oven to prevent coal from clogging the port and to provide an effluent flow path through the enlarged portion of the port and past said conduit, means for moving said conduit to the second position thereof when said sleeve is in the second position thereof and for moving said sleeve to the first position thereof when said conduit is in the first position thereof, and means for transferring coal from said hopper through said charging apparatus to the coke oven when said sleeve and said conduit are in the second positions thereof, whereby effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke oven are prevented from being vented to the atmosphere.

18. The larry car set forth in claim 17, wherein said sleeve is perpendicular to the top of the coke oven when said sleeve is in the second position thereof.

19. The larry car s et forth in claim 17, wherein said sleeve is pivotable between the first position thereof and the second position thereof.

20. The larry car set forth in claim 17, wherein said conduit is slidable with respect to said sleeve.

21. The larry car set forth in claim 17, wherein the end of said conduit extending into the port is of reduced outside diameter.

22. A larry car for transferring coal from a source thereof to a plurality of aligned coke ovens through ports therein, said larry car comprising a platform mounted on wheels and adapted to ride above the top of the aligned coke ovens, a plurality of coal hoppers mounted on said platform and corresponding in number to the number of ports in each of the plurality of coke ovens, each of said plurality of coal hoppers having an entrance thereto for receiving the coal from the source thereof and an exit therefrom for dispensing coal into a respective one of the ports in the coke oven, a plurality of charging apparatus corresponding in number to said plurality of coal hoppers and each of said plurality of charging apparatus being mounted externally of said coal hopper in continual communication with a respective one of said plurality of coal hopper exits for transferring coal to the coke ovens from said plurality of coal hoppers through the respective exits therein, said charging apparatus being pivotally movable between a first position where said charging apparatus are spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of each of said charging apparatus extends into the ports, means for transferring coal from said coal hoppers through said charging apparatus to the coke ovens when said charging apparatus are in the second position thereof, whereby coal transferred into the coke oven is prevented from clogging the ports the ends of said charging apparatus and effluents nor mally vented to the atmosphere during the transfer of coal from said coal hopper to the coke ovens are prevented from being vented to the atmosphere.

23. A system for preventing effluents from being emitted through the ports in a plurality of aligned coke ovens upon charging the coke ovens with coal, com prising a larry car for transferring coal from a source thereof to the coke ovens, a coal hopper mounted on said larry car and having an entrance th'ereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the ports in the coke ovens, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke ovens from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the ports, means for transferring coal from said hopper through said charging apparatus in the coke ovens to form a peaked coal pile therein when said charging apparatus is in the second position thereof, said one end of said charging apparatus being at a level to arrest the flow of coal when the coal pile reaches the level of said one end and to prevent the coal from filling and clogging the ports thereby maintaining free flow of effluents around said one end of said charging apparatus, and an effluent collector in communication with the coke ovens for collecting effluents produced during the charging of coal into the coke ovens and prevented from escaping therefrom into the atmosphere, whereby coal transferred into the coke ovens is prevented from clogging the ports by the end of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke ovens are prevented from being vented to the atmosphere and are collected by said effluent collector.

Paten Column Column Column Column Column Column Column Column Column (SEAL) Attest RUTH C.

I UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION t No.

Dated January 28, 1975 Inventor) Frank K. Armour and Peter Prince It is certified that error appears in the above-identified patent 1, line line UJNN line line line line line line line line line line 11, line 1 1, after Column 12, line 45, "seccond" should be --second--.

, line 44 and that said Letters Patent are hereby corrected as shown below:

61, "a" should be --to--;

29, after "provide" insert "a larry car of the type set forth wherein the charging--;

, "laarr should be ---larry--;

16, after 'showing" insert --an--;

55, "exhhaust" should be --exhaust--;

65, "apaart" should be -apart--; 7 67, after "ovens." insert --l0l and extend the length of the bank of coke ovens.--; 67, "pirovided" should be --provided--; 5, "11" should be --lll--;

47, "mechanism" should be --mechanisms--; 51, "211" should be --221--;

32, "stoP" should be --top--;

48, "220 should be --l20--;

61, "11" should be --l1l-;

21, "mechanism" should be --mechanisms--; 25, "233" should be --223--;

63 after "coke" insert -:oven---;

"in" delete "a"; and

Signed and sealed this 29th day of April 1975.

MASON \ttesting Officer FORM PO-IOSO (lo-69) C. MARSHALL DANN Commissioner of Patents and Trademarks USCOMM-DC 60376-P69 t u. s. GOVERNMENT PRINTING omct I! o-ass-au. 

1. A system for preventing effluents from being emitted through a port in a coke oven upon charging the coke oven with coal wherein the port has an upper portion and an enlarged lower portion, comprising a larry car for transferring coal from a source thereof to the coke oven, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke oven from said coal hopper through said exit therein, said charging apparatus including a sleeve in communication with said coal hopper and pivotally movable with respect thereto between a first position wherein said sleeve is spaced from the port to facilitate the movement of said larry car and a second position wherein said sleeve is in engagement with the port thereby to align said charging apparatus therewith, a conduit mounted within said sleeve and having transverse dimensions less than the upper portion of said port to fit therein and movable between a first position wherein said conduit is spaced from the engaging end of said sleeve to facilitate movement of said larry car and a second position wherein one end of said conduit extends through the upper portion of said port and into the enlarged portion of the port for charging coal to the coke oven to prevent coal from clogging the ports, the discharge end of said conduit in the second position thereof being spaced from the walls of said enlarged portion of the port to permit effluents to flow through the space between said conduit and the walls of the enlarged portion of the port, meaNs for moving said conduit to the second position thereof when said sleeve is in the second position thereof and for moving said sleeve to the first position thereof when said conduit is in the first position thereof, means for transferring coal from said hopper through said charging apparatus to the coke oven when said sleeve and said conduit are in the second positions thereof, and an effluent collector in communication with the coke oven for collecting effluents produced during the charging of coal into the coke oven and prevented from escaping therefrom into the atmosphere, whereby effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke oven are prevented from being vented to the atmosphere and are collected by said effluent collector.
 2. The system set forth in claim 1, wherein said means for transferring coal from said hopper includes an auger in communication with said hopper and with said charging conduit.
 3. The system set forth in claim 1, wherein said sleeve is perpendicular to the top of the coke oven when said sleeve is in the second position thereof.
 4. The system set forth in claim 1, wherein said sleeve is pivotable between the first position thereof and the second position thereof.
 5. The system set forth in claim 1, wherein said conduit is slidable with respect to said sleeve.
 6. The system set forth in claim 1, wherein the end of said conduit extending into the port is of reduced outside diameter.
 7. The system set forth in claim 1, wherein said means for moving said conduit is a hydraulic cylinder having a piston connected to said conduit.
 8. A system for preventing effluents from being emitted through a port in coke oven on charging the coke oven with coal, comprising a larry car for transferring coal from a source thereof to the coke oven, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke oven from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the coke oven to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the port, means for transferring coal from said hopper through said charging apparatus to the coke oven when said charging apparatus is in the second position thereof, an effluent collector in communication with the coke oven for collecting effluents produced during the charging of coal into the coke oven and prevented from escaping therefrom into the atmosphere, and a leveling bar associated with the coke oven for entry thereinto to level mounds of coal present in the coke oven and formed therein during the transfer of coal from said coal hopper to the coke oven, whereby coal transferred into the coke oven is prevented from clogging the port by the end of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke oven are prevented from being vented to the atmosphere and are collected by said effluent collector.
 9. The system set forth in claim 8, wherein said levelling bar is about one-half the width of the coke oven.
 10. The system set forth in claim 8, wherein said levelling bar is provided with a camming surface at the bottom thereof to prevent said levelling bar from digging into the coal.
 11. A system for preventing effluents from being emitted through the ports in a plurality of aligned coke ovens upon charging the coke ovens with coal, comprising a larry car for transferring coal from a source thereof to the coke ovens, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal froM the source thereof and having an exit therefrom for dispensing coal into the ports in the coke ovens, a charging apparatus mounted externally of said coal hopper in a continual communication therewith for transferring coal to the coke ovens from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the ports, means for transferring coal from said hopper through said charging apparatus to the coke ovens when said charging apparatus is in the second position thereof, and an effluent collector in communication with the coke ovens for collecting effluents produced during the charging of coal into the coke ovens and prevented from escaping therefrom into the atmosphere, coal transferred into the coke oven is prevented from clogging the ports by the end of said charging apparatus and whereby effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke ovens are prevented from being vented to the atmosphere and are collected by said effluent collector.
 12. The system set forth in claim 11, wherein each of the coke ovens has a plurality of ports therein.
 13. The system set forth in claim 11, wherein each of the coke ovens has three ports therein.
 14. A system for preventing effluents from being emitted through the ports in a plurality of aligned coke ovens upon charging the coke ovens with coal, comprising a larry car for transferring coal from a source thereof to the coke oven, a plurality of coal hoppers mounted on said larry car and corresponding in number to the number of ports in each of the plurality of coke ovens, each of said plurality of coal hoppers having an entrance thereto for receiving coal from the source thereof and an exit therefrom for dispensing coal into a respective one of the ports in the coke ovens, a plurality of charging apparatus corresponding in number to said plurality of coal hoppers and each of said plurality of charging apparatus being mounted externally of said coal hopper in continual communication with a respective one of said plurality of coal hopper exits for transferring coal to the coke ovens from said plurality of coal hoppers through the respective exits therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus are spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of each of said charging apparatus extends into the ports, means for transferring coal from said coal hoppers through said charging apparatus to the coke ovens when said charging apparatus are in the second position thereof, an effluent collector in communication with the coke ovens for collecting effluents produced during the charging of coal into the coke ovens and prevented from escaping therefrom into the atmosphere, whereby coal transferred into the coke oven is prevented from clogging the ports by the ends of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hoppers to the coke ovens are prevented from being vented to the atmosphere and are collected by said effluent collector.
 15. The system set forth in claim 14, wherein three coal hoppers are mounted on said larry car.
 16. A system for preventing effluents from being emitted through a port in an elongated coke oven upon charging the elongated coke oven with coal, comprising a larry car for transferring coal from a source thereof to the elongated coke oven, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the elongated coke oven, a charging apparatus mounted externally of said coal hopper in continual Communication therewith for transferring coal to the elongated coke oven from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the elongated coke oven to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the port, means for transferring coal from said hopper through said charging apparatus to the elongated coke oven when said charging apparatus is in the second position thereof, and a first effluent collector in communication with one end of the elongated coke oven and a second effluent collector in communication with the other end of the elongated coke oven, said first effluent collector and said second effluent collector serving to collect effluents produced during the charging of coal into the elongated coke oven and prevented from escaping therefrom into the atmosphere, whereby coal transferred into the coke oven is prevented from clogging the port by the end of the charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the elongated coke oven are prevented from being vented to the atmosphere and are collected by said first and said seccond effluent collectors.
 17. A larry car for transferring coal from a source thereof to a coke oven through a port therein having an enlarged portion, said larry car comprising a platform mounted on wheels and adapted to ride above the top of the coke oven, a coal hopper mounted on said platform and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the port in the coke oven, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke oven from said coal hopper through said exit therein, said charging apparatus including a sleeve in communication with said coal hopper and being pivotally movable with respect thereto between a first position wherein said sleeve is spaced from the port to facilitate the movement of said larry car and a second position wherein said sleeve is in engagement with the port thereby to align said charging apparatus therewith, a conduit mounted within said sleeve and movable between a first position wherein said conduit is spaced from the engaging end of said sleeve to facilitate movement of said larry car and a second position wherein said conduit extends into the enlarged portion of the port for charging coal to the coke oven to prevent coal from clogging the port and to provide an effluent flow path through the enlarged portion of the port and past said conduit, means for moving said conduit to the second position thereof when said sleeve is in the second position thereof and for moving said sleeve to the first position thereof when said conduit is in the first position thereof, and means for transferring coal from said hopper through said charging apparatus to the coke oven when said sleeve and said conduit are in the second positions thereof, whereby effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke oven are prevented from being vented to the atmosphere.
 18. The larry car set forth in claim 17, wherein said sleeve is perpendicular to the top of the coke oven when said sleeve is in the second position thereof.
 19. The larry car s et forth in claim 17, wherein said sleeve is pivotable between the first position thereof and the second position thereof.
 20. The larry car set forth in claim 17, wherein said conduit is slidable with respect to said sleeve.
 21. The larry car set forth in claim 17, wherein the end of said conduit extending into the port is of reduced outside diameter.
 22. A larry car for transferring coal from a source thereof to a plurality of aligned coke ovens through ports therein, said larry car comprising a platform mounted on wheels and adapted to ride above the top of the aligned coke ovens, a plurality of coal hoppers mounted on said platform and corresponding in number to the number of ports in each of the plurality of coke ovens, each of said plurality of coal hoppers having an entrance thereto for receiving the coal from the source thereof and an exit therefrom for dispensing coal into a respective one of the ports in the coke oven, a plurality of charging apparatus corresponding in number to said plurality of coal hoppers and each of said plurality of charging apparatus being mounted externally of said coal hopper in continual communication with a respective one of said plurality of coal hopper exits for transferring coal to the coke ovens from said plurality of coal hoppers through the respective exits therein, said charging apparatus being pivotally movable between a first position where said charging apparatus are spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of each of said charging apparatus extends into the ports, means for transferring coal from said coal hoppers through said charging apparatus to the coke ovens when said charging apparatus are in the second position thereof, whereby coal transferred into the coke oven is prevented from clogging the ports the ends of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke ovens are prevented from being vented to the atmosphere.
 23. A system for preventing effluents from being emitted through the ports in a plurality of aligned coke ovens upon charging the coke ovens with coal, comprising a larry car for transferring coal from a source thereof to the coke ovens, a coal hopper mounted on said larry car and having an entrance thereto for receiving coal from the source thereof and having an exit therefrom for dispensing coal into the ports in the coke ovens, a charging apparatus mounted externally of said coal hopper in continual communication therewith for transferring coal to the coke ovens from said coal hopper through said exit therein, said charging apparatus being pivotally movable between a first position wherein said charging apparatus is spaced from the top of the coke ovens to facilitate movement of said larry car and a second position wherein one end of said charging apparatus extends into the ports, means for transferring coal from said hopper through said charging apparatus in the coke ovens to form a peaked coal pile therein when said charging apparatus is in the second position thereof, said one end of said charging apparatus being at a level to arrest the flow of coal when the coal pile reaches the level of said one end and to prevent the coal from filling and clogging the ports thereby maintaining free flow of effluents around said one end of said charging apparatus, and an effluent collector in communication with the coke ovens for collecting effluents produced during the charging of coal into the coke ovens and prevented from escaping therefrom into the atmosphere, whereby coal transferred into the coke ovens is prevented from clogging the ports by the end of said charging apparatus and effluents normally vented to the atmosphere during the transfer of coal from said coal hopper to the coke ovens are prevented from being vented to the atmosphere and are collected by said effluent collector. 